Meteorological Technology International
  • News
    • A-E
      • Agriculture
      • Automated Weather Stations
      • Aviation
      • Climate Measurement
      • Data
      • Developing Countries
      • Digital Applications
      • Early Warning Systems
      • Extreme Weather
    • G-P
      • Hydrology
      • Lidar
      • Lightning Detection
      • New Appointments
      • Nowcasting
      • Numerical Weather Prediction
      • Polar Weather
    • R-S
      • Radar
      • Rainfall
      • Remote Sensing
      • Renewable Energy
      • Satellites
      • Solar
      • Space Weather
      • Supercomputers
    • T-Z
      • Training
      • Transport
      • Weather Instruments
      • Wind
      • World Meteorological Organization
      • Meteorological Technology World Expo
  • Features
  • Online Magazines
    • April 2025
    • January 2025
    • September 2024
    • April 2024
    • Archive Issues
    • Subscribe Free!
  • Opinion
  • Videos
  • Supplier Spotlight
  • Expo
LinkedIn Twitter Facebook
  • Sign-up for Free Weekly E-Newsletter
  • Meet the Editors
  • Contact Us
  • Media Pack
LinkedIn Facebook
Subscribe
Meteorological Technology International
  • News
      • Agriculture
      • Automated Weather Stations
      • Aviation
      • Climate Measurement
      • Data
      • Developing Countries
      • Digital Applications
      • Early Warning Systems
      • Extreme Weather
      • Hydrology
      • Lidar
      • Lightning Detection
      • New Appointments
      • Nowcasting
      • Numerical Weather Prediction
      • Polar Weather
      • Radar
      • Rainfall
      • Remote Sensing
      • Renewable Energy
      • Satellites
      • Solar
      • Space Weather
      • Supercomputers
      • Training
      • Transport
      • Weather Instruments
      • Wind
      • World Meteorological Organization
      • Meteorological Technology World Expo
  • Features
  • Online Magazines
    1. April 2025
    2. January 2025
    3. September 2024
    4. April 2024
    5. January 2024
    6. September 2023
    7. April 2023
    8. Archive Issues
    9. Subscribe Free!
    Featured
    April 15, 2025

    In this Issue – April 2025

    By Web TeamApril 15, 2025
    Recent

    In this Issue – April 2025

    April 15, 2025

    In this Issue – January 2025

    December 13, 2024

    In this Issue – September 2024

    August 8, 2024
  • Opinion
  • Videos
  • Supplier Spotlight
  • Expo
Facebook LinkedIn
Subscribe
Meteorological Technology International
Climate Measurement

Pandemic-ULEZ combination sees London nitrogen dioxide levels fall by 70%

Dan SymondsBy Dan SymondsMarch 7, 20232 Mins Read
Share LinkedIn Facebook Twitter Email
Credit: Pixabay
Share
LinkedIn Facebook Twitter Email

Nitrogen dioxide (NO2) emissions in London reduced by more than 70% between 2017 and 2021, according to a new study from the National Centre for Atmospheric Science (NCAS) and University of York.

The reduction has been attributed in part to the city’s air quality policy but also the substantial reduction in congestion that resulted from pandemic-reduced mobility.

A team of researchers used the BT Tower Atmospheric Observatory, managed by the NCAS Atmospheric Measurement and Observation Facility, to detect how levels of harmful nitrogen oxide pollutants have changed over time.

The study identified transportation and heat and power generation as the two primary sources of nitrogen dioxide pollution in central London and were able to single out the impact of emissions from each source using the observatory.

The BT Tower Atmospheric Observatory provides the only long-term measurement of nitrogen oxide emissions from a megacity in the world. At 190m tall, the observatory filters and analyzes air as it moves upwards from the streets and buildings below. A gas inlet mast on top of the tower pumps air into the 35th floor laboratory.

Professor James Lee, research fellow NCAS and University of York, said, “These measurements help us assess the success that invention policies – like the ultra low emission zone – are having on improving the magnitude of vehicle emissions, and hence the quality of the air in our cities.”

The information collected throughout the Covid-19 restrictions offers a glimpse into the future, where electrified transport – in tandem with traffic reduction schemes – may substantially improve air quality.

However, the team showed that central London became dominated by heat and power generation emissions during this period of reduced mobility, pointing towards a problem that cannot be solved by traffic measures alone.

Professor Ally Lewis, NCAS and University of York, said “Getting combustion out of cities is central to further improving air quality in the UK. We will either need to electrify the heating of homes and businesses or think much more seriously about how pollution from gas burning can be cleaned up, as we currently do for cars, trucks and buses.”

For the latest news on emissions, click here.

Previous ArticleFMI to study potential of marine heat pumps along Baltic coast
Next Article WMO aligns top priorities with UN’s Early Warnings for All initiative

Read Similar Stories

Climate Measurement

NASA selects University of Texas at Arlington researcher for wildfire smoke warning system

May 23, 20253 Mins Read
Climate Measurement

University of Pennsylvania and Microsoft Research develop machine-learning weather prediction model

May 22, 20257 Mins Read
Data

VIDEO: Caltech’s autonomous underwater vehicle harnesses ocean currents to improve ocean monitoring

May 21, 20255 Mins Read
Latest News

NASA selects University of Texas at Arlington researcher for wildfire smoke warning system

May 23, 2025

University of Pennsylvania and Microsoft Research develop machine-learning weather prediction model

May 22, 2025

VIDEO: Caltech’s autonomous underwater vehicle harnesses ocean currents to improve ocean monitoring

May 21, 2025

Receive breaking stories and features in your inbox each week, for free


Enter your email address:


Supplier Spotlights
  • EUMETSAT
Latest Job Postings
  • Postdoctoral researcher position on land surface and vegetation modelling (R2)

    • Barcelona
    • Barcelona Supercomputing Center - Centro Nacional de Supercomputación
    • Full Time
  • HPC Engineer for Earth Sciences applications (RE1/2)

    • Barcelona
    • Barcelona Supercomputing Center - Centro Nacional de Supercomputación
    • Full Time
Getting in Touch
  • Contact Us / Advertise
  • Meet the Editors
  • Download Media Pack
  • Free Weekly E-Newsletter
Our Social Channels
  • Facebook
  • LinkedIn
© 2025 UKi Media & Events a division of UKIP Media & Events Ltd
  • Cookie Policy
  • Privacy Policy
  • Terms and Conditions
  • Notice and Takedown Policy

Type above and press Enter to search. Press Esc to cancel.

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Cookie settingsACCEPT
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the ...
Necessary
Always Enabled

Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.

CookieDurationDescription
cookielawinfo-checbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Functional

Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.

Performance

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

Analytics

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.

Advertisement

Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.

Others

Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.

SAVE & ACCEPT
Powered by